b2f3dc1916
Summary: Added a warning to the log. Every 3 seconds (let's not make that configurable). Can be turned off. I still don't like this. We are raising another thread and reading a file to do monitoring. We're developing a DB, not a sys monitor. Serious admins do that themselves. But, here it is. UPDATE: Cleaned up `utils/sysinfo/memory`. Removed all unused functions. Removed the faulty memory check in `tests/concurrent`. Reviewers: buda, mferencevic, mislav.bradac Reviewed By: mislav.bradac Subscribers: pullbot Differential Revision: https://phabricator.memgraph.io/D819
50 lines
1.5 KiB
C++
50 lines
1.5 KiB
C++
#include "common.hpp"
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constexpr size_t THREADS_NO = std::min(max_no_threads, 8);
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constexpr size_t key_range = 1e5;
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constexpr size_t op_per_thread = 1e6;
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constexpr size_t no_insert_for_one_delete = 1;
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// TODO: document the test
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// This test checks remove method under pressure.
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// Each thread removes it's own data. So removes are disjoint.
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// Calls of remove method are interleaved with insert calls.
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int main(int argc, char **argv) {
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google::InitGoogleLogging(argv[0]);
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map_t skiplist;
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auto futures =
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run<std::vector<size_t>>(THREADS_NO, skiplist, [](auto acc, auto index) {
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auto rand = rand_gen(key_range);
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auto rand_op = rand_gen_bool(no_insert_for_one_delete);
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long long downcount = op_per_thread;
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std::vector<size_t> owned;
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auto inserter =
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insert_try<size_t, size_t, map_t>(acc, downcount, owned);
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do {
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if (owned.size() != 0 && rand_op()) {
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auto rem = rand() % owned.size();
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permanent_assert(acc.remove(owned[rem]), "Owned data removed");
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owned.erase(owned.begin() + rem);
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downcount--;
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} else {
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inserter(rand(), index);
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}
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} while (downcount > 0);
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check_present_same<map_t>(acc, index, owned);
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return owned;
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});
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auto accessor = skiplist.access();
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size_t count = 0;
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for (auto &owned : collect(futures)) {
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check_present_same<map_t>(accessor, owned);
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count += owned.second.size();
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}
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check_size<map_t>(accessor, count);
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check_order<map_t>(accessor);
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}
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